43248392 ÷ 400 
Our goal is to divide 43248392 by 400.

Let's proceed to step 1:
The number 400 fits into 4 0 times, leaving a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Append the next digit (3) from the dividend to 4 and continue with: 43 / 400

On to step 2:
400 goes into 43 0 times with a remainder of 43.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 43, we get 43.
Take the next digit (2) from the dividend and append it to 43, then repeat: 432 / 400

Let's proceed to step 3:
432 divided by 400 is 1 with a remainder of 32.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtract 400 from 432 to get 32.
Include the next digit (4) from the dividend after 32, then repeat: 324 / 400

On to step 4:
324 divided by 400 is 0 with a remainder of 324.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
The remainder is 324 after subtracting 0 from 324.
Fetch the next digit (8) from the dividend, attach it to 324 and continue: 3248 / 400

Let's proceed to step 5:
When dividing 3248 by 400, we get 8 with a remainder of 48.
Record the quotient 8 as the next digit in the result. 
Result so far: 108.0
If we take 3200 away from 3248, we end up with 48.
Take the next digit (3) from the dividend and append it to 48, then repeat: 483 / 400

Let's proceed to step 6:
483 divided by 400 is 1 with a remainder of 83.
Use 1 as the next digit of our solution. 
Result so far: 1081.0
Deduct 400 from 483 and we're left with 83.
Take the next digit (9) from the dividend and append it to 83, then repeat: 839 / 400

Going ahead to step 7:
400 can be fit into 839 2 times, resulting in a remainder of 39.
Use 2 as the next digit of our solution. 
Result so far: 10812.0
If we take 800 away from 839, we end up with 39.
Fetch the next digit (2) from the dividend, attach it to 39 and continue: 392 / 400

Moving on to step 8:
400 goes into 392 0 times with a remainder of 392.
Use 0 as the next digit of our solution. 
Result so far: 108120.0
The remainder is 392 after subtracting 0 from 392.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3920, and continue the process.

Step 9:
When dividing 3920 by 400, we get 9 with a remainder of 320.
Put 9 as the next digit of the answer. 
Result so far: 108120.9
Subtracting 3600 from 3920 leaves us with 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Step 10:
When dividing 3200 by 400, we get 8 with a remainder of 0.
Use 8 as the next digit of our solution. 
Result so far: 108120.98
The remainder is 0 after subtracting 3200 from 3200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 11:
The number 400 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 108120.98
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 12:
400 can be fit into 0 0 times, resulting in a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 108120.98
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 108120.98, with a leftover of 0.0.